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Finding the Fourth Proportional to 446,402.72, 615,807.24 and 285,088.16

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Solution

The fourth proportional to 446,402.72, 615,807.24 and 285,088.16 is: 393,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,402.72 : 615,807.24 = 285,088.16 : x
  2. Step 2: Convert to fraction form
    446,402.72/615,807.24 = 285,088.16/x
  3. Step 3: Cross multiply
    446,402.72x = 615,807.24 × 285,088.16
  4. Step 4: Simplify right side
    446,402.72x = 175,559,352,966.28
  5. Step 5: Solve for x
    x = 175,559,352,966.28/446,402.72
  6. Step 6: Final answer
    x = 393,275.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.